00668nam a22002171 4500 30137 20260707172245.0 67022740 DLC KE-NaSUL QA11.S661967 30137 30137 Sobel, Max A. 54868 Teaching general mathematics [by] Max A. Sobel. Englewood Cliffs, N.J., Prentice-Hall [1967] xiii, 93 p. illus. 24 cm. Teachers' mathematics reference series Mathematics Study and teaching. 52964 Slow learning children. 50325 7 cbc orignew u ocip 19 y-gencatlg BOOK AKK 30137 30135